Top 5 Construction Trends in 2018.

The year, 2018, I made a resolution, a resolution to keep construction web readers always updated and informed in the construction world.

You might as well bookmark this site,

Did someone ask why?

Well, brace yourself for 365 blog posts. 

Check out my new year resolution here 


Construction Web In 2018


So without much ado let’s get down to business, wait, I mean construction trends,

In 1900, craftsmen with varying levels of skill manufactured carts one at a time. Even the best of these carts provided little more than basic transportation. Yet in at the same time, master masons and builders created incredible stone houses using principles of design and construction that were breathtaking for the time. 

Today the technologies of both manufacturing and construction have changed, but not nearly to the same degree.

For many reasons, that I won’t state, the basic construction process of building stick by stick, piece by piece, has remained unchanged since the Middle Ages whereas in Manufacturing miracles are happening.

It is now the 21st century that we are seeing technological breakthroughs which set new waves in productivity.

So I decided to put together an article that outlines the emerging trends to look out for in the year 2018! 


IN SUMMARY

  1. Building Information Modelling
  2. Virtual  and Augmented realities 
  3. Modular and prefab houses 
  4. Green construction 
  5. Project management software

 

1 Building Information Model (BIM)

Building Information Modelling is a process that gives construction professionals the insight and tools to efficiently plan, design, construct, operate and maintain diverse physical infrastructures, such as water, refuse, electricity, gas, communication utilities, roads, bridges, ports, tunnels, etc.

 Benefits to the construction industry already have been significant in several respects, thanks to BIM features like the collaboration features, conflict resolution features. The features reduce interferences, which are instances where the design of separate systems, such as electrical conduit and high-voltage alternating current ducting, compete for the same physical space. 

So it’s clear that there is going to be less resistance with adapting BIM in construction projects. In fact, with favourable responses on previous years, we might see more advancements with BIM in 2018.

 

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2 Virtual Reality and Augmented Reality 

While the construction industry has been notoriously slow to jump into the technology revolution, soon companies will have no choice.  Another big thing to look out for is an increase in virtual and augmented reality use. This type of technology is changing the entire industry, Its biggest benefit is the ability to provide virtual walkthroughs in order to sell property and  

Preparing workers to operate the necessary machinery through simulation is a very effective method. VR enables easy communication and collaboration on site. 

.3 Green Construction 

Environmental sustainability has become a hot topic of discussion in the last few years and is expected to raise more dust. In 2018, a focus on ecological benefits will remain a trend throughout the industry as well as an increased emphasis on the financial benefits. Expect to see increasingly green business models! 

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4.modular and prefabrication construction projects

In 2017, modular and prefabrication construction has become an increasingly popular trend due to its cost-effectiveness and energy efficiency. Modular and prefabrication construction will continue to be an attractive option in 2018. Expect to see a lot more pop-ups and permanent modular buildings, as well as prefab houses this year!

However, the basic building blocks of construction—steel and concrete—are expected to remain relatively unchanged. Specific qualities of these materials will be improved, but no major substitute material is on the horizon. 

EDITORS PICK 

MOVABLE MINIMALIST HOUSE

 5 Project Management Softwares

In job sites of the past, the first tools unpacked were the shovels. Today, the first things out of the box are often computers. Terminals and graphics workstation, These computers provide communications links with the engineering office, the client, and relevant vendors or fabricators.

The software also provides the construction industry with three fundamental advantages: Efficiency, Transparency and Accountability. The latest software provides real-time communication, project overview, trackability and integrations with other software, therefore, a  system of controls optimize the design, procurement, and construction process. 

Most importantly, Expect Construction web 2.0

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TYPES OF COLUMNS

Hey, Thank you for making it back to Construction Web   Your number one site on building and construction.

Apparently, The featured image above the structural members is meant to be columns. I personally haven’t seen that type of column before. You probably have the same questions like I do but let us analyze this together.

What is the structural integrity of this types of a column?

Can the columns withstand horizontal forces and vertical forces like wind and floods?

Can the columns withstand all the structural failures?

  • The first is that the column might not be strong and tough enough to support the load, due to either its size, shape, or choice of material.
  • The second type of failure is from fatigue or corrosion, caused by instability in the structure’s geometry, design or material properties.
  • The third type of failure is from the use of defective materials. This type of failure is also unpredictable, since the material may have been improperly manufactured or damaged from prior use.
  • The fourth cause of failure is from lack of consideration of unexpected problems. This type of failure can be caused by events such as vandalism, sabotage, or natural disasters. For instance what if vandals hack the blocks which can be easily done because of the joints?

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A column is a vertical structural member intended to transfer a compressive load. For example, a column might transfer loads from a ceiling, floor or roof slab or from a beam, to a floors or foundations.

Columns effective length should be greater than 3 times Its least lateral dimension.

Primarily, Columns carry  Axial Loads and therefore are designed for compression. Other loads from snow, wind or other horizontal forces can cause bending in the columns. Columns then need to be designed for Axial Load and Bending.

 

Columns can be classified into four types  

  1. Based on Shape
  2. Based on a type of reinforcement
  3. Based on type of loading
  4. Based on slenderness ratio

 

Based on shape   

Columns can be classified according to their cross-sectional shape. Common column shapes include:

  • Rectangular.
  • Square.
  • Circular.
  • Hexagonal
  • Octagonal.
  • Y-shaped column

    Standard gauge railway: Photo credits Nairobi News

In profile, they can be tapered, non-tapered, or ‘barrel’ shaped, their surface can be plain, fluted, twisted, paneled and so on.


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Based on the type of Reinforcement 


Reinforced concrete columns have an embedded steel mesh (known as reinforcement bars ) to provide reinforcement.

The design of reinforcement can be either spiral or tied.

  1. Spiral columns are cylindrical with a continuous helical bar wrapped around the column. This spiral provides support in the transverse direction.
  2. Tied columns have closed lateral ties spaced approximately uniformly across the column. The spacing of the ties is limited in that they must be close enough to prevent failure between them, and far enough apart that they do not interfere with the setting of the concrete.
  3. Composite Columns – When the longitudinal reinforcement is in the form of structural steel section or pipe with or without longitudinal bars, it is called as a composite column.

 



Based on type of loading

Here the columns are classified into three types

Axially loaded Column: –

When the line of action of the compressive force coincides with the center of gravity of the cross-section of the column, it is called axially loaded column.

Eccentrically loaded column (Uniaxial or Biaxial)

When the line of action of compressive force doesn’t coincide with the center of gravity of the cross-section of the column, it is called as the eccentrically loaded column.


Based On Slenderness Ratio 

The slenderness ratio is the effective length of a column in relation to the least radius of gyration of its cross-section. If this ratio is not sufficient then buckling can occur.

Column slenderness is used extensively for finding out the design load as well as in classifying various columns in short/intermediate/long.

Short Column:

If the ratio effective length of the column to the least lateral dimension is less than 12, the column is called as the short column. A short column fails by crushing (pure compression failure).

The length of the column is less than the critical buckling length. Mechanical failure would typically occur due to compression.

Long Column:

If the ratio effective length of the column to the least lateral dimension exceeds 12, it is called as long column. A long column fails by bending or buckling.

If Length of the column is greater than the critical buckling length. Mechanical failure would typically occur due to buckling.

INTERMEDIATE  COLUMN:
  • In between the long and short columns, and its behaviour is dominated by the strength limit of the material.

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Zoning restrictions in Runda

Residents of the upmarket Runda estate in Nairobi have opposed the development of a multi-billion shilling luxury hotel associated with wealthy businessman Ahmed Jibril.

Officials of Runda Association (RA) claim the proposed 200-bed hotel and conference facility that Paddock Investments is developing in the affluent neighbourhood is in breach of security and requirements of controlled development.

“The proposed development is located in a gated residential community of single dwelling homes within Runda Estate. Each house sits on approximately 0.5 of an acre and the developments are controlled.

“The amalgamation and change of user is against zoning restrictions and is in breach of other applicable special conditions regulating the parent grant of Runda Estate,” the residents’ association chairman Isaac Gitoho said in a letter sent to Nairobi governor Evans Kidero, Nema director-general Geoffrey Wahungu and John Mwatu, the general manager, design and construction, at the Kenya Urban Roads Authority.

The letter says Mr Jibril, who is Foreign Affairs secretary Amina Mohammed’s brother, purchased 18 plots for which he sought amalgamation of (15 of the plots) and also sought change of user from residential to commercial (Hotel and Hotel suites).

“This negates all planning regulations, compromises security of the neighbourhood, will contribute to ground water pollution and cause degradation of the Runda residential roads,” said Mr Gitoho.

Paddock Investments plans to build the 200-bed hotel and a conference centre in Runda targeting business tourists and diplomats working in the neighbourhood such as the United Nations, the US and Canadian embassies.

Paddock Investments directors include Amina Mulik Ali, ARJ Capital Limited, Sudhir Jayantilal Patel and Billow A. Kerrow. 

Documents obtained by the Business Daily show that the Nairobi county government has cleared development of the hotel.

Runda residents have, however, maintained their opposition to the project questioning how the county government approved amalgamation of the 15 plots and change of user from residential to a hotel.

“We as an association make a resolution to petition the county government to stop construction of the hotel,” former anti-graft chief PLO Lumumba, who is a resident, said at a meeting held at Lord Eroll Hotel last week.

Mr Jibril, who identified himself as the chairman of Paddock Investments, however maintained that the planned investment is above board and would not breach the set standards as claimed by the residents.

“I have good intentions and the area needs such an investment. All the approvals have been above board,” he said, even as he disassociated the Foreign Affairs secretary from his investment activities.

He said the proposed hotel would eliminate the need to approve numerous medium-sized hotels and guesthouses that expose the area to serious security lapses.

Runda Association, however, says in a letter to the Ministry of Land and Mr Kidero that there was no public participation in approving the change of use for the plots purchased as required by law.

Houses in Runda: The residents argue that the proposed development would irreversibly alter the character of the neigbourhood

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